I think a real wildcard here is the fact that a growing number of users really hate Facebook. They hated recent changes. They hated being forced into Timeline. They hate the ads being thrown into the Newsfeed. It's just not fun anymore. And the $3.7 billion revenue seemed low to me considering they supposedly have 800 million users. How much further can they grow? There are only so many people left on the planet. And how do they get to a $100 billion valuation. I don't get that either.